Centering reenforcing construction for columns



May 20, 1930. 1,759,626

CENTERING REENFORCING CONSTRUCTION FOR COLUMNS T. H. OCKELS Filed Dec.28, 1926 I 6- M Zlwwntoc Theodore H. Ockds Patented May 20, 1930 I E DfiEQQKELL MO N E Q Q IA 1; i

,jonnrhlimsinnnnronoms cons'rnucrron FOR coLnMns' I Application filedDecember as, 1926..

This invention relates to reenforcin'g for concrete, and'the inventionis particularly applicable-in connection with the molding of concretecolumns, Thesegicolumns V are usually prov ded witha clrcumferentialregenforcing member which is generally in the 7 or all of the turns'ofthe coil arefattached; It

form of a helical coil ofsteel.. It iscustomary to providej verticalbars'to which-some is advantageous ,hollowform- I The generalobjectofthis invention is to provide a reenforcing constructionespecially adapted for constructing a hollow column of to construct the;columns of concrete and which will insure the proper centering of thereenforcing coil with respect to the axis of the column; also toprovideasaddle ofsimple construction which can be attached to verticalreenforcing bars in a column to facilitate centering them and the coilto which they are attached.

Further objectsof the invention will ap- 1 pear hereinafter.

The invention consists in the novel parts.

and combination of partsto be; described hereinafter, all ofwhichcontribute to produce an efficient centeringreenforcing construction forcolumns. 3 V

A preferred embodiment of theinvention is described in the followingspecl-ficatlon,

while'the broad scope of the invention is pointed out in theappendedclaims;

Inthe drawing:

Figure 1 is a side elevation showing a'short portion of a columnembodying myinvention, the ends of the'view being broken away.

"Figure 2 is a horizontal cross section upon an enlarged scale, takenupon the line 2 2 of Fig. 1. T Y

' Figure 3 is a Vertical section takenion" the line 33 of Fig. 2.

Fig. 4 is a perspective of the device which I provide for insuring theproper. centering of the reenforcing within the column. I

. Figure 5 is a plan of the blank for the body of the device shown inFig.4..

Figure 6 is a plan'of the key whichI employ for securing the device tothe vertical reenforcing bars.

' The invention maybe practicedwith anyvthe present instance thisi'saccomplishedby form of circumferential reenforcing. Inthe' .its axiscoinciding with the axis of'the .col-v umn which is to be formed. Thereenforcing coil 1 is disposed about the core 3.-with its axiscoinciding with that ofthe core." In addition to the reenforcing' coil'1, I provide aplurality of vertical reenforcing bars 4:, and these-barsare attached to' the turns or loopsof the 'coil 1'; Any suitable meansmay bef'employed for that purpose. .In 9'0 strikingtongues-5 out of thematerial of the bar and bending the-same over to form a. I hook -'6 (seeFig.. 3), which holds the coil 'againstthe outer 'side'ofthebar. I Iii?In order to center the coilfwlth-respect-to the axis of the column, Iprovide a plurality of centering devices, such as illustrated-in Fig.4.-Thisfdevice is'inthe form'of a saddle'orv saddle-plate, that istosay,the body :39 I 'Z'fo'fthe 'saddle'is in the form of a plate,.the .endsof-whioh are bent on transverse lines in "the planeof-the iia't side ofthe plate, and;

at rightgangle's to the body ofthel'plate to 5 form-extensions 8. Theseextensionsoperate as spacersto hold the bars 4i away from the side of-thecore 3. i In Fig. 5 I illustrate the y plate out of which the saddleis formed. This plateisfprovided with a longslot 9 which is so long thatwhen the plate is bent to form the saddle, theends of thisslot extendout into the extensions 8, asjindicatedat 10in Fig-'4.

"This slot is of tapered form and the mate- I rial whichis struckout'from the-v slot forms a' key 11. see Fig. 6) which Ixemp'loy in thisI slot to secure ingbar 4.

the saddle on itscorrespond] e -with. ........a..-

4 are preferably attached together'before they are'setuptoform-the-column;:-.iAfter'they if? After the saddle isapplied inthisiway, the

a below the-saddle V i b a I 8fwith a notch 12 Which extends about half?have been set up so as to encircle the core, I' then apply the saddlesin the gmanner indicated that i s tojsay,-' the saddle'is applied 7 sothat the {extensions 8 project toward the axis of the column 'iviththeir ends unattached to, but lyi'ng against, the side'of the core" keyll is driven into the'slot'on the opposite 7 'side of thebar so as tosecure the saddle to.

" the ban; Ifthe saddle plate is used o e bar wherethere isnocircumferential reenforc-' ring, that is to say, where thereis no crossnemberjattached to the vertical bar,- the key 11 should be sprungsl'ightly to one side so that it Will operateto'clampthe' vertical bar 7V i-resiliently andhold the saddle'in .place upon it. With a'iconstruction such as ithatde- .scribed, having coils, itis notnecessarythat the keyll should clamp the saddle onithe bar ed anyhowuponqthenearest coil or loopof thecoil, or more. enactlyupon the hook 6 whichisformed over for the re'ason that the saddle will besuppo-rt the loopof the coil just I prefer to'gform'thc ends 7 of the entensionsWayacross the plateout ofxvhich thesad-dleis formed. i This, arrangementgives the plates I sufiicient strength" and stability and at the a ysame time enables 'me to form agreater munberfof saddle blanks fromafmetalbar of a but unattachedtothcore and-cooperating i tered in thecolumn.

A centeringsaddlefor-"centeringa cumferent ial reenforcing: member in acolnmn, consisting ofaQflat plate having abody tensions, and atran'sver'se key to be received t0. a bar held of the saddle. V s

A. Asa-new article'of ure,a blank with thesame to holdthei'helialmember'cen'f: V

said blank consisting of an elongated substa-ns .tially' rectangularplaterwith axtaperedfopen f lng'extendlng longitudinallythroughoutsubstantiiallyI-the length 'ofthe same'andhavinga I notchextending into the same from-Tone'oiits} 1 end edges adjacentonesideofthe blank and I a notch extending; into 'the same {from the 5 otheend edge adjacent the other side fgth blank. i

' Signed at Compton, December, 1926. r

' THEOD ORE t given length. The'notch 12 which is formed, i

V 1. V In a reenforcing construction :torhollovvv 7' columns andthelike;the combination of a i V l circumferentiallydisposed reenforcing memf: 3l, a plur'alitysofivertical'rreenforcing mem- Y a bers connectedwiththe-"circumferential memis '45 her, a plurality of "cen'te ring. saddlesmounted on othevertical'membersand having'eXten-' V sions projectinginwardlytowiard the'axisi'of V the column, anda core Within'tlie columnurn-V attachedto ther saddles,abutting'againstf the extensionsandcooperating Withthe saddles to centernthe"circumferential;reenforcing member in thejcolu'nin. a;

3 2.111 a reenforcingconstruction ffor -jcol-.

r minus, the "combination of a helic'al member all i 'sionsprojectinginwardly toward the axis of the column, means associated With each sad;

disposed around theaxis of theflc'oluinma plu; g V rality of verticalbarsfattached to the coils of V the" helical membeniafplurality, ofsaddles I "consisting 10f bent'gp'lates respectively with Y 1 theirinner faces lying; against theouter facesc of the vertical bars, andhaving eaten- V 7 on one end'of; the platei satthempperend,

r I ,andithe notch12 vat'the otherend is formed .near the lower edgeofthe plate; This Will 1 form qall of the saddles alike and" enable .the

end of one saddle. to be struck fromzthe bar 1 i I,

j Without any dle for securing the same on its correspondingvertical;bar, anda core disposed .Withinthe column engagingthe ends ofthe extensions;

* vim

